Patrolling soldiers busted the “narcowarehouse” in Camargo, opposite Starr County’s Rio Grande City, on Saturday. Officials say vehicles there were transformed into armored steel-laden heavyweights with ample room for gunmen and specially designed slots for shooting high-powered guns. The soldiers found 23 vehicles awaiting conversion, as well as bulldozers and weapons.

No word on fuel mileage, but traveling speeds top out at a lumbering 43 miles per hour.